NSM 2.0 Beta for Win 2008 Server.

Within the NSM Admin, I am unable to see the Sentinel servers. Within the DEV environment, I've modified the FSF.CFG file and added them but communication between does not appear to be working. Within the TEST environment, everything has been recently re-installed and rebooted, but there's no communication between the Sentinels and the Engine, other than the one loaded on the same server as the Engine. Also, there does not appear to be any error messages in the App Logs or Enginems.txt.

Any thoughts or ideas?